Russian involvement in Skripal case 'beyond reasonable doubt'

It is beyond reasonable doubt that Russia was behind the Salisbury attack, Security Minister Ben Wallace insisted as Moscow stepped up efforts to undermine the UK's case.
Russia has called for a meeting of the United Nations Security Council and foreign minister Sergey Lavrov said the UK has "legitimate questions" to answer about the nerve agent assault on Sergei Skripal and his daughter Yulia.